Haedt



(No Model.)

F. BURCKHARDT.

GAR ROOF.

Patented Mar. 17, 1885.

N. Pneus. mumrmhognpner. wmingm n, c.

UNITED STATES PATENT OFFICE.

FRIEDRICH BURCKHARDT, OF ST. CHARLES, MISSOURI.

4CAR-ROOF.

SPECIFICATION forming part of Letters Patent'No. 313.985, dated March 17, 1885.

Applicaiion sied .my 9, 1884. (No model.)

To a/ZZ whom zi may concern:

Be it known that I, 'FRIEDRICH BURCK- HARDT, of St. Charles, in the county of St. Charles and State of Missouri, have invented acertain new and useful Improvement in Car- Roofs, of which the following is a full, clear, and exact description, reference being -had to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a top View of one` end of a car. Fig. 2 is a section taken on line 2 2, Fig. 1. Fig. 3 is atop view of one of the sections. Fig. 4 is a bottom view of same. Fig. 5 is a section taken on line 5 5, Fig. 1, enlarged. F1g. 6 is a similar View taken on line 6 6. Fig. 3; and Fig. 7 is a similar view taken on line 7 7, Fig. 1.

My invention relates to an improved roof for cars, 8mo.; and it consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, A represents the upper frame-work of a car-body, and B the rafters.

The roof is made of metal, consisting preferably of outer sections, C C, and middle con necting sections, D, those D overlapping the upper edges of those O, as shown in Figs. 2 and 5, awater-tight joint being made between them by means of ribs I on one of the parts,

entering grooves between ribs J in the other part. These parts join at a rafter on each side, and are held from any movement, to keep the joints tight, by downwardlyprojecting :flanges L, that embrace the rafters, and they may be secured to the rafters by screws N, as shown in Fig. 5. The sides of the sections O overlap, (see Figs. 3 and 6,) one section having ribs O and the other ribs I), to form a water-tight joint. These sections C are secured to the rafters in the, center by iianges T and screws U, (see Figs. 2 and 7,) and their lower edges are secured to the frame A by anges V and screws W.

It will be seen that the ribs on each section are so formed as to interlock.

I claim as my inventionl. Acar-roof section having side and end ribs and downwardly-projecting anges to embrace the rafters, as shown and described.

2. A car having a metal roof made in sections jointed together byinterlocking ribs, and having flanges to embrace the rafters, to which they are secured by screws, substantially as set forth.

GEO. H. KNIGHT, SAML. KNIGHT. 

